Tclx documents infox the following way:
infox option
Return information about Extended Tcl, or the current
application. The following infox command options are
available:
version
Return the version number of Extended Tcl. The
version number for Extended Tcl is generated by
combining the base version of the standard Tcl
code with another number indicating the version of
Extended Tcl being used.
patchlevel
Return the patchlevel for Extended Tcl.
have_fchown
Return 1 if the fchown system call is available.
This supports the -fileid option on the chown and
chgrp commands.
have_fchmod
Return 1 if the fchmod system call is available.
This supports the -fileid option on the chmod com-
mand.
have_flock
Return 1 if the flock command defined, 0 if it is
not available.
have_fsync
Return 1 if the fsync system call is available and
the sync command will sync individual files. 0 if
it is not available and the sync command will
always sync all file buffers.
have_ftruncate
Return 1 if the ftruncate or chsize system call is
available. If it is, the ftruncate command
-fileid option maybe used.
have_msgcats
Return 1 if XPG message catalogs are available, 0
if they are not. The catgets is designed to con-
tinue to function without message catalogs, always
returning the default string.
have_posix_signals
Return 1 if Posix signals are available (block and
unblock options available for the signal command).
0 is returned if Posix signals are not available.
have_signal_restart
Return 1 if restartable signals are available
(-restart option available for the signal com-
mand). 0 is returned if restartable signals are
not available.
have_truncate
Return 1 if the truncate system call is available.
If it is, the ftruncate command may truncate by
file path.
have_waitpid
Return 1 if the waitpid system call is available
and the wait command has full functionality. 0 if
the wait command has limited functionality.
appname
Return the symbolic application name of the cur-
rent application linked with the Extended Tcl
library. The C variable tclAppName must be set by
the application to return an application specific
value for this variable.
applongname
Return a natural language name for the current
application. The C variable tclLongAppName must be
set by the application to return an application
specific value for this variable.
appversion
Return the version number for the current applica-
tion. The C variable tclAppVersion must be set by
the application to return an application-specific
value for this variable.
apppatchlevel
Return the patchlevel for the current application.
The C variable tclAppPatchlevel must be set by the
application to return an application-specific
value for this variable.